3a, First Floor Flat, Athelstane Mews, Islington, London, N4 3EH
About 3a
3a is a mid-terrace house in Islington, London, London (N4 3EH). It has a recorded floor area of 43 m² (around 463 sq ft) and construction records dating it to 1900-1929. The latest certificate (October 2025) shows a C (score 70). The rating has held steady at C across 2 certificates since September 2015. Between certificates, lighting went from Very Poor to Good; while wall efficiency dropped from Good to Very Poor and roof efficiency dropped from Good to Average.
2 planning records sit against the property, 1 approved, 0 refused. Past consents include change of use to residential, meaningful when judging how the property has evolved. On a £-per-square-foot basis, the last sale (£897/sq ft) was about 42.8% above the typical sold price in the postcode. On the market in March 2016 and unlisted since — roughly 10 years. At 43 m² it's 29.5% smaller than the typical home in the postcode (61 m² median across 7 EPCs).
Know exactly what you're buying at 3a
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Planning history
- Aug 2015Change of UseOutlineIn report
Prior Approval for change of use of office space [B1a] on the first floor to residential use [C3] to provide one 1 x bed residential unit.
- Documents
- 10 docs on file
- Reference
- P2015/2510/PRA
- Sept 2004New BuildFullIn report
Demolition of existing workshops and erection of new two storey building containing two 2 bedroom and two 1 bedroom mews style houses with new roof.
- Documents
- 1 doc on file
- Reference
- P041912
What's in 3a, First Floor Flat, Athelstane Mews, Islington, London, N4 3EH's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
£423,000
Modelled from EPC, postcode comparables.
£415,000
Recorded with HM Land Registry.
Sales timeline
4 March 2016Most recent
£415,000
Median price across the last 3 sales in N4 3EH: £400,000 (2024–2004).
Everything we know about 3a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Athelstane Mews homes
On epc rating, 3a runs well behind the street norm.
EPC Rating
70 (C)
Street avg 78 (C)
Floor Area
43 m²
Street avg 46 m²
CO₂ Emissions
1.6 t/year
Street avg 1.4 t/year
Habitable Rooms
2 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Tollington Park — bus stop.
Closest school
0.3 km
Stroud Green Primary School. 89 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
55.0dB
Night-time· 23:00 – 07:00
45.0dB